Year 11 – Dynamics

New material to the syllabus highlighted in blue
Material modified from the old syllabus in yellow
Forces
  • using Newton’s Laws of Motion, describe static and dynamic interactions between two or more objects and the changes that result from:
    • a contact force
    • a force mediated by fields
    • explore the concept of net force and equilibrium in one-dimensional and simple two-dimensional contexts using: (ACSPH050)
      • algebraic addition
      • vector addition
      • vector addition by resolution into components
    • solve problems or make quantitative predictions about resultant and component forces by applying the following relationships:
      • F_{AB} = -F_{BA}
      • F_{AB} = {x} = Fcos{\theta}, F_{y} =Fsin{\theta}

Resource – Newton’s Third Law – 2 pages

  • conduct a practical investigation to explain and predict the motion of objects on included planes(ACSPH098)

Investigation – Friction on Inclined Planes – 3 pages

Forces, Acceleration and Energy
  • apply Newton’s first two laws of motion to a variety of everyday situations, including both static and dynamic examples, and include the role played by friction (\vec{f}_{friction} = \mu\vec{F}_{N})(ACSPH063)

Resource – Newton’s Laws of Motion – 5 pages

  • investigate, describe and analyse the acceleration of a single object subjected to a constant net force and relate the motion of the object to Newton’s Second Law of Motion through the use of: (ACSPH062, ACSPH063)
    • qualitative descriptions
    • graphs and vectors
    • deriving relationships from graphical representations including \vec{F}_{net} = m \vec{a}  and relationships of uniformly accelerated motion
  • apply the special case of conservation of mechanical energy to the quantitative analysis of motion involving:
    •  
    • work done and change in the kinetic energy of an object undergoing accelerated rectilinear motion in one dimension (W = F_{\parallel}s = Fscos\theta )
    • changes in gravitational potential energy of an object in a uniform field (\Delta U = mg\Delta h )
  • conduct investigations over a range of mechanical processes to analyse qualitatively and quantitatively the concept of average power (P = \frac{\Delta E}{\Delta t} , P = F_{\parallel}v = Fvcos\theta ), including but not limited to:
    • uniformly accelerated rectilinear motion
    • objects raised against the force of gravity
    • work done against air resistance, rolling resistance and friction
Momentum, Energy and Simple Systems
  • conduct an investigation to describe and analyse one-dimentional (collinear) and two-dimensional interactions of objects in simple closed systems (ACSPH064)
  • analyse quantitatively and predict, using the law of conservation of momentum (\Sigma m \vec{v}_{before} = \Sigma m \vec{v}_{after}) and, where appropriate, conservation of kinetic energy (\Sigma m v^{2}_{before} = \Sigma m v^{2}_{after}), the results of interactions in elastic collisions (ACSPH066)

Resource – Elastic Collisions – 2 pages

  • investigate the relationship and analyse information obtained from graphical representations of force as a function of time
  • evaluate the effects of forces involved in collisions and other interactions and analyse quantitatively the interactions using the concept of impulse (\Delta\vec{p} = \vec{F}_{net}\Delta t)
  • analyse and compare the momentum and kinetic energy of elastic and inelastic collisions (ACSPH066)

Resource – Elastic vs Inelastic Collisions – 2 pages

PDF – All ‘Dynamics’ Documents
PDF – All Year 11 Modules